ATI Mobility Radeon HD 4670 Mac Edition vs NVIDIA GeForce GT 720M
Processeur graphique
| Nom du GPU | M96 | GF117 |
|---|---|---|
| GPU variant | M96 XT (216-0729051) | N14M-GE |
| Architecture | TeraScale | Fermi 2.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 55 nm | 28 nm |
| Transistors | 514 million | 585 million |
| Taille des matrices | 146 mm² | 116 mm² |
Graphiques mobiles
| Date de publication | Sep 16th, 2009 | Apr 1st, 2013 |
|---|---|---|
| Génération | M9x (Mobility HD 4600) | GeForce 700M |
| Production | End-of-life | End-of-life |
| Bus interface | MXM-A (3.0) | PCIe 2.0 x16 |
| Critiques | 2 in our database | — |
| Prédécesseur | M8x | GeForce 600M |
| Successeur | Manhattan | GeForce 800M |
Vitesse clock
| GPU clock | 680 MHz | 775 MHz |
|---|---|---|
| Mémoire clock | 790 MHz 1580 Mbps effective | 800 MHz 1600 Mbps effective |
| Shader clock | — | 1250 MHz |
Mémoire
| Taille de la mémoire | 256 MB | 2 GB |
|---|---|---|
| Type de mémoire | GDDR3 | DDR3 |
| Bus mémoire | 128 bit | 64 bit |
| Bande passante | 25.28 GB/s | 12.80 GB/s |
Render Config
| Shading units | 320 | 96 |
|---|---|---|
| TMUs | 32 | 16 |
| ROPs | 8 | 8 |
| Compute units | 4 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 128 KB | 128 KB |
| Comptage SM | — | 2 |
Performance théorique
| Taux de pixel | 5.440 GPixel/s | 3.100 GPixel/s |
|---|---|---|
| Taux de texture | 21.76 GTexel/s | 12.40 GTexel/s |
| FP32 (float) performance | 435.2 GFLOPS | 240.0 GFLOPS |
| FP64 (double) performance | — | 20.00 GFLOPS (1:12) |
Board Design
| Taille Slot | MXM Module | MXM Module |
|---|---|---|
| TDP | 35 W | 33 W |
| Sorties | No outputs | No outputs |
| Board number | B80357 | — |
Caractéristiques graphiques
| DirectX | 10.1 (10_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| Shader model | 4.1 | 5.1 |
| CUDA | — | 2.1 |
